Jupiter, the largest planet in the solar system, was 2 to 2.5 times bigger in its earlier life, according to new research. Jupiter, the largest planet orbiting the sun, used to be much bigger and ...

Jupiter is already the biggest planet by far in our solar system, but new research suggests it was somehow once even larger than it is now. Twice as large, in fact. To put that into context, those ...

There are a couple of ways that scientists can date planets, so which planets formed first in our solar system?

The solar system is composed of the sun, eight major planets, five dwarf planets, over a hundred moons, and countless comets ...

While Saturn 's magnificent rings, spanning 175,000 miles (280,000 kilometres), are a familiar celestial marvel, scientists ...

People around the world will have a chance this weekend to catch what could be the year’s most stunning view of the largest planet in our solar system. Jupiter on Saturday will shine at its brightest ...

It’s like something out of an interplanetary chess game. Astrophysicists at the University of Toronto have found that a close encounter with Jupiter about four billion years ago may have resulted in ...

A planet 100 light-years away that resembles a young Jupiter has been discovered by an international team of astronomers that includes six UCLA scientists. The discovery is reported Aug. 13 in the ...

PASADENA, Calif. (AP) – Soaring over Jupiter’s poles, a NASA spacecraft arrived at the solar system’s largest planet on a mission to peek behind the cloud tops. The final leg of the five-year voyage ...